<!DOCTYPE html>  
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org"  
      xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity3">  
    <head>  
        <title>Spring Security Example </title>  
    </head>  
    <body>  
        <div th:if="${param.error}">  
            Invalid username and password.  
        </div>  
        <div th:if="${param.logout}">  
            You have been logged out.  
        </div>  
        <form th:action="@{/login}" method="post">  
            <div><label> UserName : <input type="text" name="username"/> </label></div>  
            <div><label> Password: <input type="password" name="password"/> </label></div>  
            <div><input type="submit" value="Sign In"/></div>  
             
        </form>  
    </body>  
</html>